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Shows the four orders of protozoa, in terms of structure and behaviour. Binary fission, conjugation, ingestion and excretion, parasitism, symbiosis and colonial organisation are illustrated by seventeen...
The inter-relationships between the alder wood-wasp and four hymenopterous parasites are shown in detail. Two of the methods of parasitism were new to science when the film was made.
Discusses the ecology of a tropical rainforest at Korup in Cameroon including predation, parasitism, competition and symbiosis. Sequences include one of the flowers of Parkia and the animals which visit it....
Compares and contrasts three major phyla of worms; flatworms (platyhelminthes), roundworms (nematodes) and segmented worms (annelids). The approach to flatworms is physiological, showing the nervous system,...
The peridinian ‘Dissodinium pseudocalani’ feeds holozoically upon the eggs of the copepod ‘Pseudocalanus elongatus’ of which it is an ectoparasite. The parasitic stage is followed by vegetative...
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